towards her and there is an interesting question about what influence she had over tamerlan and the influence he had over his younger brother. >> and there are reports of the side story that friends of tamerlan think he may have been involved in a triple murder that took place in 2011 that took the life of one of his american friends, someone described as his best friend. what are authorities saying about that investigation because it was a cold case? >> i just spoke a little while ago to the district attorney's office and they confirmed it is an open and on going investigation. i think we have to be cautious on this one. the links are a bit tennious. apparently some relatives of one of the victims thinks there may be a connection based on comments from some of the friends but it is not clear exactly how close that the relationship was between one of the victims and tamerlan. there is some disputed reporting on that. and they are not confirming that tamerlan tsarnaev is a target or subject of the investigation right now. so i think right now we have to be a little cautious. i want t